Hitachi RCI-1.0FSR Service Manual page 191

7 Servicing
7.7.7 Removing AS motor .................................................................................................................................... 251
7.7.8 Removing drain pan .................................................................................................................................... 252
7.7.9 Removing heat exchanger .......................................................................................................................... 253
7.7.10 Removing thermistors for freeze protection, gas pipe, outlet air and inlet air ........................................... 257
7.7.11 Removing fan and fan motor ..................................................................................................................... 261
7.7.12 Removing electronic expansion valve coil ................................................................................................. 264
7.7.13 Removing Horizontal Louver ..................................................................................................................... 266
7.8 RPF(I)-(1.0-2.5)FSN2E - Floor and Floor concealed type................................................................... 267
7.8.1 Removal of the air inlet grille ....................................................................................................................... 267
7.8.2 Removal of the air filter ............................................................................................................................... 267
7.8.3 Removal of the air outlet grille ..................................................................................................................... 267
7.8.4 Removal of the front panel .......................................................................................................................... 268
7.8.5 Removal of the fan motor ............................................................................................................................ 268
7.8.6 Removal of the printed circuit board (PCB) ................................................................................................. 269
7.8.7 Removal of the thermistors from the liquid and gas piping ......................................................................... 269
7.9 K PI-(252-2002)(E/X)4E - Energy recovery and active energy recovery ventilation units .................... 270
7.9.1 System description ...................................................................................................................................... 270
7.9.2 Structure and part names ............................................................................................................................ 270
7.9.3 Service cover location ................................................................................................................................. 270
7.9.4 Removal of heat exchanger ........................................................................................................................ 271
7.9.5 Removal of the air filter ............................................................................................................................... 271
7.9.6 Removal of the float switch (X4E series only) ............................................................................................. 272
7.9.7 Removal of the damper motor ..................................................................................................................... 273
7.9.8 Removal of the electrical box ...................................................................................................................... 274
7.9.9 Removal of the PCB .................................................................................................................................... 274
7.9.10 Removal of the fan motor .......................................................................................................................... 275
7.9.11 Removal of the DX-Coil Module (X4E series only) .................................................................................... 276
7.10 DX-Interface ........................................................................................................................................ 277
7.10.1 Structure and part names .......................................................................................................................... 277
7.10.2 Removal of the electrical components ...................................................................................................... 277
181 SMGB0137 rev.0 - 05/2021
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